<?php
$_->extend('install/layout');
?>
<form method="post">
    <?php // This is not CSRF-proof :( ?>
    <?php foreach ($form->fields() as $field):
        $field->label();
        $field->help();
        $field->error();
        $field->widget($user);
    endforeach; ?>
    <button type="submit" name="action" value="save"><?php _e('Save') ?></button>
</form>